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June 4, 1960


Author Affiliations

Box 1002 Thiells, N. Y.

JAMA. 1960;173(5):574. doi:10.1001/jama.1960.03020230100025

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To the Editor:—  In his splendid article, "Development of Urinary Control in Children," which appeared in The Journal, March 19, page 1256, Dr. Muellner states, "Man's ability to void at any degree of bladder filling is a unique biological phenomenon which no other mammal manifests. An apparent exception is the male dog (and other canines), who is able to deposit small amounts of urine at each pillar and post."I have two female Dalmatians, mother and daughter, aged 10 1/2 and 7 1/2 years, who show the same characteristic to a marked degree. Possibly the fact that they have both been spayed has something to do with this phenomenon. Often they will deposit small amounts of urine in as many as a dozen places within a few minutes, usually in places which have recently been used by male dogs. This would tend to confirm Dr. Muellner's statement that this act

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